You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@flink.apache.org by "Xintong Song (Jira)" <ji...@apache.org> on 2023/03/23 08:52:14 UTC
[jira] [Updated] (FLINK-29551) Improving adaptive hash join by using sort merge join strategy per partition instead of all partitions
[ https://issues.apache.org/jira/browse/FLINK-29551?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xintong Song updated FLINK-29551:
---------------------------------
Fix Version/s: 1.18.0
(was: 1.17.0)
> Improving adaptive hash join by using sort merge join strategy per partition instead of all partitions
> -------------------------------------------------------------------------------------------------------
>
> Key: FLINK-29551
> URL: https://issues.apache.org/jira/browse/FLINK-29551
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Runtime
> Affects Versions: 1.16.0
> Reporter: dalongliu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.18.0
>
>
> Currently, regarding adaptive hash join, when falling back to sort-merge join, it sorts all partitions globally, however, due to the keys of each partition are disjoint, we can sort it per partition, which can improve the performance.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)